Form for concrete construction.



L. AXIUM. FORM FOR CONCRETE OONSTBUGTION.

907,438. Arrmu'rro'x FILED mzq; ao, mov. Patented Dec. 22, 1908.

2 BHEETB-SHEET 1.

w. L. 'AXVIUM. FORM FOB CONGBBTE CONSTRUCTION.

APPLIUATION FILED DBO. S0, 1907.

Patented Dec. 22, 1908. 2 SHEETS-SHEET 2.

WILLIAM L. AXIUM, OF DOWNERS GROVE, ILLINOIS.

' FOR CONCRETE CONSTRUCTION.

Specicationof Letters Patent.

Patented Dec. 22, 1908.y

Application'iiiea December 3o, i907; seriai No. 408,573.

Toall whom it may concern: A Be it known that I, WLLIAM L. AXIUM, a v cltizen of thev United States, `residing at ;Do wners Grove, count of Dupage, and State of Illinois, have invented certain new and useful Improvement-s in Forms for Con- Y "crete, Construction, of which the following is aspecincation.

My invention relates to concrete construction and particularly to forms for concrete construction.

The forms generally -used for concrete con-I jstruction are usually made otwood which necessitates the making of new forms as the Work progresses, as the Wooden forms soon become Warped and broken to such an extent as to become practically useless. Also, sepa-` rate forms must be made for each variation in the size of the columns and beams.

i The objectof my invention is to provide a form for concrete construction which may be used repeatedly without deteriorating iii quality or eiiciency.

A further object of my invention is to provide a form ior concrete construction which may be readily and quickly adjusted for the construction of various sizes of columns, beams and the like.

Other objects will appear hereinafter. With these objects in view my invention consists generally in a light but rigid skeleton steel-frame of substantially the size and form required and suitable lining for said frame to receive the concrete. i My invention further consists in a plurality of longitudinal members suitably arranged to give the proper configuration to the form and A connected. by a plurality of transverse niem- 4 v. :bers t'o form a rigid frame and in sheet metal members adapted to line said frame to receive the concrete.

zj'My invention further consists in a frame members adjustably connected bya'plurality 5pt transverse members and a .suitab e lining,

for said frame.

My invention further consists in a frame as mentioned inV combination with a similar extension member detachably connected thereto.

- My invention further consists in a frame as mentioned in combination with a similar extension frame, means slidably connecting the frame and the extension, and in suitable 5-5' members for closing the gaps between; them. Myinvention further consists in various v'. comprising va plurality of longitudinal steelV .prise the top, T irons l-l, the angle irons, 2?, and the intermediate bars, 3 3 and 4, .the former being arranged at the sides intervniei'liate of the top members, l and the botdetails of construction and arrangements of parts all as will be hereinafter fully described and particularly pointed out in the claims.

My invention will be more readily understood by reference to the. accompanying drawings forming a part of this speciiication and in which* 4 Figure l is a side elevation of the upper end of a form for a. column illustrating the beam forms connected thereto by suitable quoins. Fig. 2 is a side elevation of one of the forms for a beam. Fig. 3 isa similar view with the parts expanded to forni' a beam of larger dimensions. Fig. e is a section-of the form on the line of Fig. 3. Fig. 5 is a detail side elevation.illustrating one manner of extending the length of the beaniiorm. Fig. 6 is a detail plan view` oi-a'iorm for a main beam equipped or having connected thereto form frames for smaller cross or intermediate beams. Fig. 7 is a side elevation of column form `ivithan extension member slidably connected thereto and illustrating a closure to complete the form between the S0 sections of the column, Fig. S is a cross scction of a column form upon an enlarged scale. Fig'Q is a detail cross section oi a column form arranged for an octagonal column, Fig.

l() is a perspective vievv ot' a couple ot' quoin 85 forms arranged at the upper end of a column form, and Fig. ll is a detail.

In the dra-Wings, l have illustrated the preferred embodiment of my invention, and indesciibing the same in detail will first describe the forms for the beams and then the forms for the columns and the manner of connecting the tivo.

As illustrated in the drawings the frame for the beam forms consists of a plurality of longitudinal steel members arranged to form a trough like device and suitably connected by transverse members into a. rigid frame. The longitudinal members preferably comtom members, 2, and the latter beingarranged at the bottoni of the device between the members, 2 2. The -nembers, 1 to 4 are rigidly connected by a plurality of trans-` verse members, 5. These are riveted 1n pairs to the intermediate members, 3 a d 4.r and diagonally arranged as Shown to rigidly brace the members, apart. yThe ends of the members, 5 are bolted to the members, 1 and f bolts are in the bolt holes, 6, the form will be adjusted for the smallest size beams. By arranging the bolts in the holes, 7, it is obvious thatv the form will be enlarged to construct a beam of greater dimensions, and in the holes, 8 for a beam of still larger dimensions.

It is obvious that any number of bolt holes may be provided,` the greater the number, the greater the adjustment of the form.' However, a. few are generally sufiicient, and these are preferably so placed as to adjust the form to standard sizes. If preferred thek top members, 1 may be constructed of angie irons but I prefer theT irons as shown, the upper flange, 1 preferably being the same height as the thickness of the floor which is to be laid. To close the frame to complete the form, I provide the members, 9 and 1()v which are preferably formed of sheet metal, the frame supporting the same in such a manner as to give sufficient rigidity thereto.

In order that the device may be used in the construction of beams of any desired length, I construct the same of longitudinal members of a length equal to the lshortest beams which are made in actual practice. and provide the same with extension members by means of which it may be adjusted for use in forming the beams of any desired length. The extensionmembers are formed similarly to the main portion and may be bolted thereto, the ends of the members being iianged for this purpose, orthey may be slidably connected thereto. In the latter instance the extension member is provided with a plurality of extension bars slidably arranged between the longitudinal and transverse members of the main portion of the device, as shown in Fig. 5. In said figure the longitudinal members of the extension member are ,indicated at -1 a, 2, and 3a. Bolted to the transverse members, 5a or otherwise secured thereto are the extension bars, 11 which extend a considerable distance into the main portion ofthe 'frame between its component members. rIhe main and extension members of the frame are thus adjustably connected and may be extended to any length desired, limited only by the length of the bars, 11. After the frame is extended, the gaps or `spaces between the ends of the members are closed by similar members, 1b, 2b, and 3b of suitable length and connected by the transverse members, 5?. The ends of .the longitudinal members of the several parts are provided Awith corresponding flanges, or lugs, 12 by which they may be bolted together forming a rigidy frame. If deemed i to the strips, 14.

theA column form frame.

edges 'and the strip, 15, eing the intermediate strip, and a plurality of transverse'mem- 'bers 16 riveted to the strip, 15 and bolted to the strip, 14. The transverse members, 16 are similar to the members, 5 of the beam form frames and the width of the device may be adjusted in a manner similar to the adjnstment ofthe; beam frames, the members, 14 being rovided with a plurality of bolt holes, 17 torthis urpose. The edges of the sides are provide with means for locking the sides togethers* rllhispreferably consists of a plurality of lugs, 18 formed upon or secured The lugs are provided with bolt holes which register When the sides are assembled and the frame is held together by the bolts, 19 passing through 'the lugs. In constructing an octagonal column suitable members, 20 may be interposed between the edges of the members, 14. These may be plates provided with lugs, 21 to register with the lug, 1 8 as shown in F ig. 9, or may be formed similarly to the adjustable sides of It is obvious that the device may be so proportioned as to be that by the arrangement and adjustment of the sides, columns of various forms may be constructed. The 'length of` the members, 14 and A15 are proportioned to construct columns of minimum height, and to utilize the same for :columns of greater height, I provide suitable extension members and in. liig. 7 I have illustrated the preferred mannee-lofeX-l tending their length. The extensioii'i'liieiiiber vcomprises adjustable sides formedlsimilarly to the column portion of the longitudinal strips, 14 and 15 adjust-ably connected by the transverse members, 16. Secured to the extension members are the extension strips, 22 which telescope between the strips, 14 and the transverse members or braces', v16. It is evident that the frame may be thus extended to any desired length limited only by the length of the strips, 22. To complete the frame, I provide suitable means for closing the gaps between the strips', 14 and 15 and the corresponding strips 14 and 15". These consist vof shortfsections formed similarly to the sides of the main portion ofthe frame and composed of the strips, 14b and 15b connected by the transverse members 16h. It is obapplies also to the transverse members, of

the beam form frames. The form for the columns 1s completed by the lining members,

.23 preferably formed ot' sheet metal.

To connect the beam forms to the column forms, I provide suitable quoin forms as illustrated in Figs. 1 and 10. Each quoin form comprises a pair of side plates Z4-24 of sufficient size to be used in constructing quoins of largest dimensions and provided with the flanges 25 and 26 by Which they are connected to the ends of the beam and column forms respectively. The flanges, 25 are provided with a plurality of -bolt holes, 27 arranged to register With the bolt holes in the end tlanges,`28 of the beam forms when in their several adjusted positions. The bottom of the form is adjustably fixed between the plates, 2l in order to be raised or lowered to suit the depth of the beam forms; and is preferably adjustable in Width to vary the Width of the quoin form to correspond with the adjustment in width of the beam forms and column forni. To this end the bottom comprises the angle irons, Z9 adapted t-o be bolted to the plates, 24, the intermediate strips, 30 and the transverse members, 31, adjustably connected in a manner similar to Ehe several members of the beam and column "OI'IDS- Sometimes it is desirable to construct one now in general use, the actual cost is.

much less, inasmuch as the Wooden forms need to be constantly replaced While the steel forms may be used repeatedly Without deterioratinft in quality or efliciency. Further, a few fjorms are all that is necessary in constructing a building. The forms may be adjusted to one of their larger sizes in constructing the lower stories of a building and as the work progresses may be removed to the upper stories and reduced in size as necessary.

Having described my invention what lI claim as new and desire to secure by Letters Patent is: y

l. A form for conc-rete beams and columns comprising a skeleton frame formed of a plurality of longitudinal members rigidly connected by a plurality of angularly disposed transverse members and a suit able lining for said frame, said form being adjustable by changing the angular positions of said transverse members substantially as described.

2. A form for concrete construction comprising a frame formed of a plurality of longitudinal members rigidly connected by a plurality vof diagonally disposed transverse members, said transverse members being permanently secured to certain of the longitudinal members and adjustably connected to others ofsaid longitudinal members and a suitable lining for. said frame, substantially as and for the purpose specified.

3. A torni for concrete construction comprising a frame the sides of which being formed ofthree parallel longitudinal members connected by diagonally disposed transverse members, said transverse members being permanently secured to the central longitudinal member and adjustably secured to the other longitudinal members, the other longitudinal members being provided with a plurality of bolt holes, and a lining forsaid frame substantially as described.

A form for concrete construction ccmprising a beam form consisting of a plurality of longitudinal frame members adjustably i connected and a lining for said beam form,

the ends of said longitudinal members being turned and perforated, in combination With a quoin form consisting of a pair of side plates, an adjustable bottom connecting said plates and a lining for said bottom, the edges of said side plates being outwardly bent to form flanges, and said flanges being perforated to receive bolts for attaching the perforated ends of said longitudinal frame vmembers thereto, substantially asrdescribcd; 5. A quom torni for concrete constructioncomprising a pair of' side plates provided with iianges for attaching the same to beam-and column forms, and a bottom consisting of a pair of longitudinal members adjustably connected to the respective side lates, a plurality of transverse members adj usta'bly connecting said longitudinal members and av lining resting on said members, substantially.

icoA 

